[0/5] ALSA: scarlett2: Small fixes + device map retrieval

Message

Geoffrey D. Bennett Oct. 4, 2024, 2:27 p.m. UTC

Hi Takashi,

This patch series contains:

- 3 small fixes, I don't think need to be backported.

- Simplification of linked channel handling to match how the firmware
  works. This is needed to be able to handle the recently-announced
  big 4th Gen models correctly.

- Addition of support for device map retrieval: the Vocaster and
  Scarlett 4th Gen series added a new operation allowing the host to
  retrieve a base64-encoded zlib-compressed JSON representation of the
  device and the location of each control. This patch makes that
  available through /proc/asound/cardX/device-map.json.zz.b64

Regards,
Geoffrey.

Geoffrey D. Bennett (5):
  ALSA: scarlett2: Fix redeclaration of loop variable
  ALSA: scarlett2: Fix mixed declarations and code warning
  ALSA: scarlett2: Return ENOSPC for out-of-bounds flash writes
  ALSA: scarlett2: Simplify linked channel handling
  ALSA: scarlett2: Add support for device map retrieval

 sound/usb/mixer_scarlett2.c | 220 +++++++++++++++++++++++++++---------
 1 file changed, 165 insertions(+), 55 deletions(-)